Limit z-axis movement during tool change

I am busy converting a c-tek milling machine to linuxcnc, this machine requires z-axis movement during tool change. Has anyone done this before?

I made the point of tool clamp and unclamp to be at g30z0, but encountered a problem. It worked well, until there was a power failure, and then after starting up (after the power failure), the machine lost its g30z0 position, and broke the whole carousel off the machine.

I'm currently using a sub routine, and was planning to remap m6, to execute the sub-routine, but I am thinking to not use g30z0, but rather machine coordinate, with g53, and move machine with g53, during tool change.

But I need to command something like m64p3, during the sub-routine /remapping of m6, to limit the movement of the z-axis.

Any advice how I can do that?

I do a z-move during toolchange using G53.
I attach my subroutine for that here.

Here is also a short film where I test the toolchange and measuring toollength.

perra_e wrote:

I do a z-move during toolchange using G53.
I attach my subroutine for that here.

Here is also a short film where I test the toolchange and measuring toollength.

File Attachment:

File Name: toolchange.ngc
File Size:3 KB

I know this is an older thread but I have to come to terms on how this works.
How do you correlate the M64 P0 to an output that opens the lid?

I dont get it....

bevins wrote:

perra_e wrote:

I do a z-move during toolchange using G53.
I attach my subroutine for that here.

Here is also a short film where I test the toolchange and measuring toollength.

File Attachment:

File Name: toolchange.ngc
File Size:3 KB

I know this is an older thread but I have to come to terms on how this works.
How do you correlate the M64 P0 to an output that opens the lid?

I dont get it....

Nevermind I found where it is.